Windmill.



C. A. STEHNEH.

WINDMILL.

APPLICATION man APR-18. 1913.

1 1 44,737. 4 Patented J 11119 29, 1915.

3 SHEETS-SHEET I.

n45 NORRIS PETERS 60., PHom-LITHa. WASHINGTON. D. C.

C. A. STERNER.

QWINDMILL- APPLICATION FILED APR. 15, 1913-.

1 1 44,737 Pateflted June 29, 1915.

3 SHEETSSHEET 2.

C. A. STERNIZR.

' WINDMILL. APPLICATION FILED APR. I3. I9I3- Patented June 29, 1915.

3 SHEETS-SHEET 3.

i i/humus THF N =E=9s CO. PHOTc-LITHQ, WASHINGTON. D. c.

CLEMENT A. STERNER, OF ALLENTOWN, PENNSYLVANIA, ASSIGNOR T0 HELEN L. STERNER, TRUSTEE, OF ALLEN'IOWN, PENNSYLVANIA.

WINDIVIILL.

Specification of Letters Patent.

Patented June as, rare.

Application filed April 18, 1913. Serial No. '?G1,888.

To aZZ whom itmag concern:

Be it known that I, CLEMENT A. S'rmmnn, a citizen of the United States, residing at Allentown, in the county of Lehigh and State of Pennsylvania, have invented certain new and useful Improvements in l Vind mills, of which the following is a specification.

My invention has relation to a. turbine type of windmill to impart its power for being utilized to advantage, as requirements demand; and in such connection my present invention relates particularly to the arrangement and mode of operation, as well as control of the mill under variable wind conditions exerting the power derived therefrom. and with uniformity utilizing the same.

My invention consists of a windmill of the hereinbefore recited type and of the charac ter as illustrated in the accompanying drawings and as hereinafter claime l.

The nature and scope of my present invention will be more fully understood from the following description taken in connection with the said drawings forming part hereof, in which-- Figure 1, is an elevational view of a windmill, embodying main features of my said invention, with one of the supporting standards removed in order to expose more fully certain working members, affected by the operations of the mill. Fig. 2, is a vertical central sectional view through the upper portion of the mill. Figs. 8 and 4, are respectively, transverse sectional views on the lines 33, and 44;, of Fig. 2; and Fig. 5, is an enlarged detail view, of one of the pivotal outside shutters or blinds of said mill, and in broken section a part of the operating means thereof.

Referring to the drawings a, is a series of vertical standards braced to each other at a and which standards are bolted to a bedplate a supporting a series of vertical tiebar supports 64 for an inclining roof a In the bed-plate a andthe top plate a, are arranged ball-bearings a for engaging a vertical driven shaft a This shaft carries at its lower extremity a miter-gear Z), meshing with a complemental miter-gear 5 mounted on a cross-shaft 6 which is journaled in a bracket 6 suspended from the underside of the bed-plate a as clearly illus trated in Fig. 2. On the said cross-shaft 6 is secured a sprocket a, carrying a chain 0 and engaging a similar sprocket 0 on a shaft 0 of a transmitting apparatus C, as clearly shown in Fig. 1, the said sprockets and chain forming the traveler revoluble member C of the mill and for the actuation of the motor C.

On the cross-shaft 5 is mounted a can trifugal governor (Z, having two weighted balls d and (Z pivotally arranged and connected with one another by a coiled spring (Z Located between the balls and rigidly secured to the shaft Z2 is a spool-like device 0Z in which the balls (Z1 and d normally are in bearing contact. A friction roll (Z is held against the end of the spoollike device and is carried by a pivotal arm cl. A spring or is connected with said arm and with a bar (Z carried at one end of a threaded shaft cl", journaled to a bracket al This bracket is suspended from the under side of the bedplate a The bar (Z8, is steadied in position and in its movement in connection with the bracket al in the mannor as clearly illustrated in Fig. 2. On the threaded shaft d is secured a sprocket 63 on which is mounted achain (Z for revolving the shaft (Z and thereby to manually increase or decrease the friction of the roll (Z against the device d so as to regulate the speed of the revoluble member C in connection with the shaft 0 Fig. 1, of the transmitting appliances 0, to maintain the same more or less uniform, in operation In the upper portion of the mill is located a circular tooth-like or turbine rotor e, for example, of a type as clearly illustrated in Fig. 3. This rotor is detachably secured at the upper and lower ends thereof, by means of screw-bolts e and 6*, bearing against the shaft a for example, as illustrated in Fig. 2.

Surrounding the turbine-like rotor and located outside thereof, is a series of shutters or blinds f, pivoted at the top to the disk (4, and at the bottom to the base-plate a Movable disks or plates 7 and f are connected with each other by means of a series of vertical rods forming a cage F, within which revolves the rotor e. The shaft a is rotated in the ball-bearings a.

The series of shutters or blinds f, are connected by rods 7 and 7, with the disks f and f and which are rotatable independently of the rotor 6..

The shutters or blinds f, are automatically controlled as to their opening or closing by the weights 9 and g and by varying force or volume of wind currents. When the shutters or blinds f, are closed as illustrated in Fig. 3, and with a moderate wind blowin the weight g is suflicient to overcome the weight 9 plus the force or volume of such wind current and hence the shutters or blinds 7, will be opened to occupy the position illustrated in Fig. 4L When the wind currents increase in velocity or volume so as to close the shutters or blinds f, the outside surface plane of the shutters or blinds f, exposedv to such currents, plus the effect of the weight 9 is so much greater than the inside plane of certain of the shutters or blinds 7", exposed to such wind currents as to overcome the weight g, and the latter will be lifted and hence the shutters or blinds thereby closed and the weight g lowered. Those blinds or shutters 7, seemingly that might be thought with reference to Fig, 4, to be held open by the wind current hugging'the under surface of the planes of a minor number of such shutters or blinds exposed to such wind will be entirely overcome due to the lesser pressure of the air with respect to that contacting directly with the outside planes of the major number of the said shutters or blinds directly exposed to said wind currents and thus close all the said shutters or blinds and at the same time during such closing the respective pockets of the rotor 6, will have gathered in volume the said air and expended it advantageously in the rotation of the said rotor. Hence it will be observed that when the outside air currents are above normal the shutters or blinds will be closed and the weight 9 will be lowered and will remain so until again the currents become normal,

when the weight 9 will rise to cause the shuttersor blinds f, to again open so that thereby they may be placed in a position in which air currents may enter to actuate the I rotor e, the vertical shaft a governor d, traveler C and-shaft 6 of the transmitting appliance G, to impart energy to a distant piece of machinery, lighting-plant or other utility to be operated.

By reference to Fig. 3, the rotor 63, comprises a series of buckets, each in formation having a periphery, consisting of a series, ofvlong straight walls 0 merging into shorter similar walls 6 at an obtuse angle to the former and with slightly outwardly inclined or curved terminals 6, whereby admission of wind currents to each of the buckets of the rotor is facilitated and likewise clearance expedited while the series of. shutters or. blinds f, occupy the position, for example, as illustrated in Fig. 4, in contradistinction to the outline formation of the buckets, as shown and described in my prior Patent No. 993,120, dated May 23rd, 1911, while such permits of moreor less ready admission of wind currents thereto, yet by reason of the said bucket formation, as shown and described therein, they tend rather to retard than facilitate clearance of air pocketed during spending of its force in actuations of said rotor.

Having thus described the nature and object of my invention, what I claim as new and desire to secure by Letters Patent is 1. The combination, of a vertical shaft, a turbine type of rotor connected with said shaft, said rotor, consisting of a series of buckets, each having a long straight formation merging into a shorter straight formation at an obtuse angle to the former and the latter terminating in an inclining extremity, the arrangement being such as to permit of freely admitting air to said buckets as well as facilitating clearance of such air, after its force is expended in said buckets, substantially as and for the purposes described.

2. The combination, in a windmill, of a vertical shaft, a turbine type of rotor connected with said shaft, said rotor, consisting of a series of buckets, each having a long straight formation merging into a shorter straight formation at an obtuse angle to the former and the latter terminating in an inclining extremity, the arrangement being such as to permit of freely admitting air to said buckets as well as facilitating clearance of such air after its force is expended in said buckets, shutters or blinds pivotally supported in position and movable inclependently of said rotor, suspended weights to open and close said shutters or blinds and operable by the air currents and a crossshaft connected with said vertical shaft and having a sprocket and chain, substantially as and for the purposes described.

In witness whereof, I have hereunto set my signature in the presenceof the two subsubscribing, witnesses hereto.

CLEMENT A. STERNER.

Witnesses J. WALTER DOUGLASS, THOMAS M. SMITH.

Copies of this patent may be obtained for five cents each, byaddressing the a Commissioner of Patents,

' Washington, D. (3. 

